package socket;

import java.io.*;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.Scanner;

/**
 * 客户端
 */
public class Client {
    private Socket socket;
    public Client(){
        try {
            System.out.println("正在连接服务端...");
            //socket =new Socket("172.234.10.33",8848);
            socket =new Socket("localhost",8848);
            System.out.println("服务端连接成功");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void start(){
        try {
            OutputStream out=socket.getOutputStream();
            OutputStreamWriter osw=new OutputStreamWriter(out, StandardCharsets.UTF_8);
            BufferedWriter bw=new BufferedWriter(osw);
            PrintWriter pw=new PrintWriter(bw,true);

            Scanner scan=new Scanner(System.in);
            while (true) {
            System.out.println("请输入昵称:");
            String nickname=scan.nextLine();
                if (nickname.trim().isEmpty()) {
                    System.out.println("用户名不能为空，请重新输入");
                } else {
                    pw.println(nickname);
                    System.out.println("欢迎你:"+nickname+",请开始聊天吧");
                    break;
                }
            }
            ServerHandler handler=new ServerHandler();
            Thread t=new Thread(handler);
            t.setDaemon(true);
            t.start();


            while(true){
                String line=scan.nextLine();
                if("exit".equalsIgnoreCase(line)){
                    break;
                }
                pw.println(line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }finally {
            try {
                socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    public static void main(String[] args) {
        Client client=new Client();
        client.start();
    }
    private class ServerHandler implements Runnable{
        public void run(){
            try {
                InputStream in=socket.getInputStream();
                InputStreamReader isr=new InputStreamReader(in,StandardCharsets.UTF_8);
                BufferedReader br=new BufferedReader(isr);
                String message;
                while((message=br.readLine())!=null){
                    System.out.println(message);
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}
